Specifications
Engine
One Pratt & Whitney R-1340-49 radial piston engine rated at 600
hp for take-off and 550 hp at 8,000 ft
Fuel capacity
Internal fuel 111 US gal
Dimensions
Wingspan 42 ft 0 in
Length 29 ft 0 in; height 11 ft 9 in
Operational weights : Empty 3,900 lb; maximum take-off 5,155 lb
Performance
Maximum level speed 'clean' 182 kt (210 mph) at 5,000 ft; normal cruise
126 kt (145 mph)
Maximum range 546 nm (629 miles)
Service ceiling 24,000 ft
Armament
Provisions for one forward-firing cowl-mounted .30 cal. machine gun
and one trainable .30 cal. machine gun in the rear cockpit.

Any damned fool can criticize,
but it takes a genius to design it in the first place.
— Edgar Schmued, Chief Designer
North American Aviation.
